Puncture-proof tire.



McROY DE VIESB. PUNGTURE PROOF TIRE. APPLIOATION FILED OGT.7, 1911.

1,028,334. Patented June 4, 1912.

z! 17 J s.

1/220 1/ j}? a yflz M12? Witnesses Inventor V A2, a

a! 5 /f Attorneys manor DE vriisn,

generous-moor TIRE.

1n the rim structure, against accidental in-.

l 'y- A further object of the invention is to provide a 'novel series of members ada ted 15 to inclose the resilient element of a w 1eel structure; and to provide novel means for slss'e'inbl'ing these members with the spokes of the wheel.

Inthe' accompanying drawings,Figure 2o 1 is a .fragmental side elevation; Fig. 2 is a section upon the line AB of Fig. 1; Fig. 3

an enlarged detail'from Fig. 1, parts being broken away; Fig. 4 is a sectional detail en arged from Fig.2; and Fig. 5 is a sec- 96 ,tional side'elevat1on, showing a: modified form of the invention;

A In the accompanying drawings, this hub is denoted by the numeral'l, and the spokes by the numeral 2.

.80 The invention includes aprimary rim 3,

and a secondary rim 4, inclosing the primary rim 3 circumferentially, the rims 3 and 4 having in their adjacent faces, recesses 5.

i In the recesses 5, an inflatable pneumatic 3'5 tube 6 is adapted to fit, the rims 3 and 4 being spaced apart, as denoted by the nu meral 7.

1 Located upon both sides of the spokes 2,

are the spokeflanges 8, and upon the outside i-of the spoke flanges-8 are side plates 9, the.

plates 9 being extended inflush relation withrespect to the,periphery of the primary rim' 3. To the side plates9 are applied guards, denoted generally by the numeral 10. These guards 10 comprise, each, paraliel, spaced flanges 11 and 12,'connected by a rectangularly disposed portion 14. The flanges 11 are applied to the side plates 9,

, and thIQUgh the'flanges 11, through the side pletes a, through the spoke flangesv 8, and through the okes 2 are extended securing elements, pr erably taking the form of bolts 15.

The invention further includes a pair of cover plates 16, lying upon the outside of the .side plates 9. The cover plates 16 at their I Specification of tetters Patent. vacatio flled October 7, 19.11. a Serial no. 653,392.

Patented June 4, 1912.

inner edges, are thinned, as shown at 17, to fit between the flanges 12 of the guards'10 and the side plates 9, so that the outer faces of the cover plates1'6 will be flush with the outer faces of the flanges 12 of the guards 10. Through the thinned portions 17 of the cover plates 16, through ,the side plates 9, through the spoke flanges 8, "and through the spokes 2 are extended securing elements, preferably taking the form ofbolts 18. In the thinned portions 17 of the cover plates 16 there are openings 19, of considerably greater diameter than the'diameter of the bolts 18, the construction beingsuchthat the cover plates 16 may have Movement upon the bolts 18, to permit a compression of the tube 6. The openings 19 are covered by washers 20, carried by the bolts 18; and the ends of the bolts 18 are received in recesses 21 formed in the inner faces of the flanges 12 of the guards 10.

The invention further includes a pair of flexible members 22, the inner edges of which are received in recesses 23 fashioned 1n the inner faces of the flanges 11 of the guards 10, the flanges 11 serving to bind the inner edges of the flexible strips 22 against the side plates 9, as clearly shown in Fig. 4. The outer edges of the flexible members 22 overla the portions 17 of the cover plates 16, an upon the flexible members 22, adjacent their outer edges, reinforcing strips 24: are c placed, securing elements 25 being passed through the reinforcing strips 24, and through the flexible members 22, into engagement with the thinned portions 17 of the cover plates 16. The outer edges of the cover plates 16 are equipped with tread flanges 26, extended toward the median plane of the wheel, the traced flanges 26 be- 1 ing overlapped upon each other and scarfed together, as shown at 27. Adjacent the side edges of the -wheel, the tread flanges 26 are equipped with outstanding ribs 28, between which is'disposed the tire 29, which may be of any desired construction. The primary rim 3 is formed, with inwardly projecting ribs 30, adapted to fit in recesses in the ends of the spokes 2, bolts 31 being passed through the ribs 30, and through the side plates 9, to afford an additional means for securing the side plates 9 to the spokes.

In that form of the invention which appears in Fig. 5, the tire is denoted by the numeral :32, the secondary rim by the numeral 33, and the primary rim by the numeral 34, the rims 33 and 34: being recessed, as at 35, in the manner hereinbefore described.

disposed, helical compression springs 37,1;

. dISPOSQdUPOIl 'each sideof each of the spokes 40, there being inwardly projecting lugs 36 fashioned in the rims 33 and34, which lugs 36 receive the ends of the springs. 37. The

primary-rim 345*is provided with the outstanding rib 38,-as before, .and through this rib 38 passes a securing bolt 39, for the purpose. hereinbefore set forth.

Owing to the fact that the pneumatic tube 6- is located between the rims 3 and 4, and is housed in laterally by the cover plates 16, it will be seen that a puncture of themember 6 will be a practical impossibility.

" Owing ,t th fact. that the securing bolts 18 passloosely through the-holes 19 in the I cover: plates 16, the cover plates will have limited. movement, thereby providing for an expansion and compression-of the pneumatio tuloe'6. The inner edges of the cover plates. 16 are recelved within the guards 10,

and thus moisture is prevented from gain- -1ng access to the.1nter1or of the structure.

The device is further made dust proof and moistureproof, by reason of the presence of the flexible strips 22 which, extending en-' ti-rely about the structure, eireumferentia'lly of the same, serve to prevcnt the entrance of a dust and moisture between -the cover plates 16 and the side plates-9. The guards 10 obviouslyi serve to protect the flexible strips 22. It will be understood that, when desired,

I the pneumatic tube. 6, shown in Fig.2, may

1 and having'port-ions disposed substantially parallel to the side plates and spaced from the side plates, thecover plates extending beneath-said portions of theguards; and

be replaced by the springs 37, shown in Fig. 5.

Having thus described ar inventiomwhat is claimed is: 1

'1..In; a device of the class described, a primary rim; side plates applied thereto; a secondary ri1n; resilient means located-between" the rims and spacing them apart; cover plates connectedwith thesecondary rim and overlapping the side plates; guards secured to the outer faces of the sideplates flexible members secured along one edge to the side plates, the flexible members extend: ing substantially parallel to the-side plates and having their outer edges attached to the ,cover plates; said portions of theguards H serving to house the flexible "members com plelely. I V .2. In a device of-the class described-i a primary rim; agsecondary rimj means dis- "posed between the rims for normally main; .t-alning the same spaced apart; side'plates 85 secured to the primary, rim; cover platesv loeated upon the outside ofthe side plates, the cover plates having angularly disposed tread flangesinclosing the secondary rim; guards secured to the side plates and overlapping the edges of the cover plates flexible members bound between the guards and the side't plates, the guards being recessed to receive the edges of the flexible members,- the flexible members being overlapped upon the cover, plates and secured thereto; and securv ing elements extended. through the side plates, and loosely through the cover plates, the guards having recesses in which the ends of the securing elements are-received. Y In a devicev of the class described,"side plates; a primary rim held between the side plates; a secondary rlim inclosingthe prima ry rim cireumferentially; resilient means located between the rims, formaintaining '85 the same normally spaced apart; cover plates locatedupQn-the outsideof the side: plates, the cover" plates having angularly formed tread flanges, extendedacross the secondary rim; securing members" extende'dffloi through the side plates, and loosely engaged with the cover plates-to permit an expans ion and compression of the resilient means; guards secured to. thefl side plates, and hav-. 1 ing recesses adapted fio' receive the ends of the'securing members; the'flexible members being engaged between the guards-and the.

side plates, the flexible members overla ping the cover plates; reinforcing strips dis: posed upon the flexible members; and seem: ing elements uniting-the relnforclng strlps,

1 the flexible members, and the cover plates.

In testimony that I claim the foregoing-5;;-. as my own, I have hereto aflixed my s1gnaf' ture in .the presence of two witnesses.

McROY nnvrusn. WVitnesses: i

P. E. Hnisnn, W. H. Coons.

Gopiesotthis patent may be obtained for five cents each, by addressing the qommis sionerot It'atnts,-

' Washington, D. c. I 

